The human brain weighs about one pound (less than half a kilo) at birth, but by the time a person reaches the age of six, the brain weighs up to three pounds. What causes weight gain? According to experts, when we are learning to stand, talk and walk, a network of contacts begins to form in our brain, and thus the weight of the brain increases.
There are about 100 billion cells in our brain. One brain cell has one thousand to ten thousand contacts with other brain cells and the transmission of messages between these cells takes place in a thousandth of a second.
The right side of our brain controls the left side of the body while the left side of the brain enables the right side of the body to function.
The brain weighs about 2% of the total body weight, but it uses 20% of the oxygen supplied to the whole body and 20% to 30% of the total body energy.
From the brain to our muscles, the message of action reaches a speed of four hundred kilometers per hour. The thickness of a brain nerve cell is four microns, which means that 30,000 such cells can fit on the tip of a pin.
The brain of an adult dolphin weighs the same as that of an adult human, but the brain of an elephant is four to five times larger than our brain. If the brain can't get oxygen for just five to ten minutes, it can be severely damaged and life-threatening.
The total length of the network of blood vessels in the human brain is about seven hundred kilometers.
Every time a new idea comes to your mind or something new comes to mind, new connections are made between two or more cells in your brain.
When you are awake, your brain is generating twenty-five watts of electricity. This electricity is enough to light a light bulb.